using System;
using System.Collections.Generic;
//using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Drawing;
using System.Text;
using System.IO;
using BusScheduler;

public partial class _Default : System.Web.UI.Page
{
    public TransportSystem aTransportSystem = new TransportSystem();
    System.Text.StringBuilder sb = new System.Text.StringBuilder();
    public List<Route> allRoutes = new List<Route>();
    public Route aRoute;
    public TripPattern pattern1 = new TripPattern();
    public TripPattern aTripPattern;

    protected void Page_Load(object sender, EventArgs e)
    {
        checkMobile();
        //read from the file
        TextReader fileReader = new StreamReader(System.AppDomain.CurrentDomain.BaseDirectory.ToString() + "\\Bus Schedule2.csv");
        try
        {
            string title = fileReader.ReadLine();
            title = fileReader.ReadLine();
            string[] bits = title.Split(',');
            aTransportSystem.name = bits[0];
            lblTitle.Text = aTransportSystem.name + " Scheduler";
            lblTitle.Font.Size = 30;
            string line = fileReader.ReadLine();
            string line2 = fileReader.ReadLine();
            string line3 = fileReader.ReadLine();
            bits = line3.Split(',');

            while (bits[0] != "")
            {
                BusScheduler.Location aLocation = new BusScheduler.Location();
                aLocation.name = bits[0].Replace("\"", "");
                aLocation.address = bits[1];
                aLocation.type = bits[2];
                aLocation.latitude = double.Parse(bits[3]);
                aLocation.longitude = double.Parse(bits[4]);
                aTransportSystem.cLocation.Add(aLocation);

                line3 = fileReader.ReadLine();
                bits = line3.Split(',');

                //add for the combo box
                ListItem addList = new ListItem();
                string location_name = aLocation.name.Replace("\"", "");
                string latlong = aLocation.latitude + "~" + aLocation.longitude;
                if (!IsPostBack)
                {
                    addList.Text = location_name;
                    addList.Value = latlong;
                    if (aLocation.type == "Time Point") lstTimePoint.Items.Add(addList);
                    else if (aLocation.type == "Bus Stop") lstBusStop.Items.Add(addList);
                    else if (aLocation.type == "Interchange") lstInterchange.Items.Add(addList);
                }
            }

            line = fileReader.ReadLine();
            bits = line.Split(',');
            while (bits[0] != "" && bits[0] != "Bus Reroute")
            {
                List<string[]> table = new List<string[]>();
                aRoute = new Route();
                aRoute.name = bits[0];
                line2 = fileReader.ReadLine();
                line3 = fileReader.ReadLine();
                bits = line3.Split(',');
                while (bits[0] != "")
                {
                    table.Add(bits);
                    line3 = fileReader.ReadLine();
                    if (line3 == null)
                    {
                        bits = "".Split(',');
                    }
                    else
                    {
                        bits = line3.Split(',');
                    }
                }
                List<BusScheduler.Location> cLocation = new List<BusScheduler.Location>();
                List<BusScheduler.Time> c2ArrivalTime = new List<BusScheduler.Time>();
                List<BusScheduler.Time> c1WaitTime = new List<BusScheduler.Time>();

                string[] firstRow = table[0];
                List<string> firstList = new List<string>();
                firstList.AddRange(firstRow);
                int index = firstList.FindIndex(
                            delegate(string str)
                            {
                                return str == "";
                            });
                int n1TripPattern;
                if (index > 0)
                {
                    n1TripPattern = index / 5; //5 = arrival time, wait time, repeat time, first repeat, ;last repeat
                }
                else
                {
                    n1TripPattern = firstList.Count / 5;
                }
                for (int i = 0; i < n1TripPattern; i++)
                {
                    aTripPattern = new TripPattern();
                    foreach (string[] cString in table)
                    {
                        if (i == 0)
                        {
                            string locationName = cString[0];
                            BusScheduler.Location aLocation = aTransportSystem.aLocationAt(locationName);

                            cLocation.Add(aLocation);
                        }
                        if (cString[1] != "")
                        {
                            int offset = 5 * i;

                            BusScheduler.Time aArrivalTime = ConvertTime2(cString[offset + 1]);
                            BusScheduler.Time aWaitTime = ConvertTime2(cString[offset + 2]);
                            if (cString[offset + 3] != "")
                            {
                                aTripPattern.repeatMinutes = ConvertTime2(cString[offset + 3]);
                                aTripPattern.firstRepeatTime = ConvertTime(cString[offset + 4]);
                                aTripPattern.lastRepeatTime = ConvertTime(cString[offset + 5]);
                            }
                            aTripPattern.c1ArrivalTime.Add(aArrivalTime);
                            aTripPattern.cWaitTime.Add(aWaitTime);
                        }
                    }
                    aRoute.addTripPattern(aTripPattern);

                }
                aRoute.cLocation = cLocation;
                allRoutes.Add(aRoute);
                line3 = fileReader.ReadLine();
                if (line3 == null)
                {
                    bits = "".Split(',');
                }
                else
                {
                    bits = line3.Split(',');
                }
            }


            foreach (Route r in allRoutes)
            {
                r.setcTrip();
            }

            line = fileReader.ReadLine();
            line3 = fileReader.ReadLine();
            bits = line3.Split(',');
            while (bits[0] != "")
            {

            foreach (Route r1 in allRoutes)
            {

                if (r1.name.IndexOf(bits[0]) != -1)
                {
                    foreach (Route r2 in allRoutes)
                    {
                        if (r2.name.IndexOf(bits[1]) != -1)
                        {
                            BusScheduler.Routing route = new BusScheduler.Routing();
                            route.from = r1;
                            route.to = r2;
                            aTransportSystem.cBusRoute.Add(route);
                        }
                    }
                }
            }
                line3 = fileReader.ReadLine();

                if (line3 == null)
                {
                    bits = "".Split(',');
                }
                else
                {
                    bits = line3.Split(',');
                }
            }


            string[] Items = new string[aTransportSystem.cLocation.Count];
            for (int i = 0; i < aTransportSystem.cLocation.Count; i++)
            {
                Items[i] = aTransportSystem.cLocation[i].name;
            }
        }
        catch { }
        fileReader.Close();
        if (!IsPostBack)
        {
            drawMarker("");
        }
    }
    public BusScheduler.Time ConvertTime2(string time)
    {
        BusScheduler.Time newTime = new BusScheduler.Time();
        newTime.setTime(Convert.ToDouble(time));
        return newTime;
    }
    public BusScheduler.Time ConvertTime(string time)
    {
        BusScheduler.Time newTime = new BusScheduler.Time();
        string[] splitTime = time.Split(':');
        newTime.setTime(Convert.ToDouble(splitTime[0].Trim()) * 60 + Convert.ToDouble(splitTime[1].Trim()));
        return newTime;
    }
    public void drawMarker(string script)
    {
        string javascriptCode = "resetMarker();DrawMap();";
        double lat, lng;
        int type = 0;
        foreach (BusScheduler.Location location in aTransportSystem.cLocation)
        {
            lat = location.latitude;
            lng = location.longitude;

            if (location.type == "Time Point") type = 0;
            else if (location.type == "Bus Stop") type = 1;
            else if (location.type == "Interchange") type = 2;

            javascriptCode += "setLatLong(" + lat + "," + lng + ");dragMarker(" + type + ");";
        }
        Page.RegisterStartupScript("myscript", "<script language=JavaScript>" + javascriptCode + script + "</script>");
    }
    public string clockTime(BusScheduler.Time min)
    {
        string hour = (Convert.ToInt16(min.total) / 60).ToString();
        int minutes = (Convert.ToInt16(min.total) % 60);
        string digits;
        if (minutes < 10)
        {
            digits = "0" + minutes.ToString();
        }
        else
        {
            digits = minutes.ToString();
        }
        string clockTime = hour + ":" + digits;
        return clockTime;
    }
    protected void btnGetDirection_Click(object sender, EventArgs e)
    {
        string textFrom = txtFrom.Text;
        string textTo = txtTo.Text;
        string fromScript = "", toScript = "";
        string[] CoorFrom;
        string[] CoorTo;
        double distance1 = 0, distance2 = 0;
        BusScheduler.Location NearestlocationFrom = new BusScheduler.Location();
        BusScheduler.Location NearestlocationTo = new BusScheduler.Location();
        lblNotification.Text = "";
        //lblWalkWarning.Visible = false;
        if (textFrom != "" && textTo != "")
        {
            CoorFrom = textFrom.Split(',');
            CoorTo = textTo.Split(',');
            double result1, result2;
            if (CoorFrom.Length == 2 && double.TryParse(CoorFrom[0], out result1) && double.TryParse(CoorFrom[1], out result2))
            {
                //double hyp, x, y, hypShortest = 0;
                //NearestlocationFrom = aTransportSystem.cLocation[0];
                //x = NearestlocationFrom.latitude - result1;
                //y = NearestlocationFrom.longitude - result2;
                //hypShortest = Math.Sqrt(Math.Pow(x, 2) + Math.Pow(y, 2));
                ////find the nearest point
                //foreach (BusScheduler.Location location in aTransportSystem.cLocation)
                //{
                //    x = location.latitude - result1;
                //    y = location.longitude - result2;
                //    hyp = Math.Sqrt(Math.Pow(x, 2) + Math.Pow(y, 2));
                //    if (hyp < hypShortest)
                //    {
                //        NearestlocationFrom = location;
                //        hypShortest = hyp;
                //    }
                //}
                //distance1 = distanceCalculator(result1, result2, NearestlocationFrom.latitude, NearestlocationFrom.longitude);
                //int distanceMeter1 = Convert.ToInt16(distance1 * 1000);
                //fromScript = "Walk " + distanceMeter1 + "m to " + NearestlocationFrom.name + " station.";
                //lblWalkWarning.Visible = true;
            }
            else
            {
                foreach (BusScheduler.Location location in aTransportSystem.cLocation)
                {
                    if (textFrom.Trim() == location.name.Trim())
                    {
                        NearestlocationFrom = location;
                        break;
                    }
                }
            }
            if (CoorTo.Length == 2 && double.TryParse(CoorTo[0], out result1) && double.TryParse(CoorTo[1], out result2))
            {
                //double hyp, x, y, hypShortest = 0;
                //NearestlocationTo = aTransportSystem.cLocation[0];
                //x = NearestlocationTo.latitude - result1;
                //y = NearestlocationTo.longitude - result2;
                //hypShortest = Math.Sqrt(Math.Pow(x, 2) + Math.Pow(y, 2));
                ////find the nearest point
                //foreach (BusScheduler.Location location in aTransportSystem.cLocation)
                //{
                //    x = location.latitude - result1;
                //    y = location.longitude - result2;
                //    hyp = Math.Sqrt(Math.Pow(x, 2) + Math.Pow(y, 2));
                //    if (hyp < hypShortest)
                //    {
                //        NearestlocationTo = location;
                //        hypShortest = hyp;
                //    }
                //}
                //distance2 = distanceCalculator(result1, result2, NearestlocationTo.latitude, NearestlocationTo.longitude);
                //int distanceMeter2 = Convert.ToInt16(distance2*1000);
                //toScript = "Walk " + distanceMeter2 + "m to your destination from " + NearestlocationTo.name + " station.";
                //lblWalkWarning.Visible = true;
            }
            else
            {
                foreach (BusScheduler.Location location in aTransportSystem.cLocation)
                {
                    if (textTo.Trim() == location.name.Trim())
                    {
                        NearestlocationTo = location;
                        break;
                    }
                }
            }
            if (NearestlocationFrom.name != null && NearestlocationTo.name != null)
            {
                if (NearestlocationFrom.name != NearestlocationTo.name) findDirection(NearestlocationFrom, NearestlocationTo, fromScript, toScript, distance1, distance2);
                else
                {
                    lblNotification.Text = "Please select different From/To location.";
                    drawMarker("setAB();");
                }
            }
            else
            {
                lblNotification.Text = "No such location";
                drawMarker("setAB();");
            }
        }
        else
        {
            lblNotification.Text = "Please select From/To location.";
            drawMarker("setAB();");
        }
    }
    public BusScheduler.Location startDest, endDest;
    public int hour, minute;


    public void findDirection(BusScheduler.Location from, BusScheduler.Location to, string fromScript, string toScript, double Fromdistance, double ToDistance)
    {
        bool solutionFound = false;

        startDest = from;
        endDest = to;

        hour = int.Parse(ddlHour.SelectedItem.Text);
        if (ddlTime.SelectedIndex == 1) hour += 12;
        minute = int.Parse(ddlMin.SelectedItem.Text);
        List<Route> endRoutes = new List<Route>();
        foreach (Route r in allRoutes)
        {
            if (r.ContainsEnd(endDest))
            {
                endRoutes.Add(r);
            }
        }
        List<Route> startRoutes = new List<Route>();
        foreach (Route r in allRoutes)
        {
            if (r.ContainsStart(startDest))
            {
                startRoutes.Add(r);
            }
        }
        List<Route> goodRoutes = new List<Route>();
        foreach (Route r in startRoutes)
        {
            if (endRoutes.Contains(r))
            {
                goodRoutes.Add(r);
            }
        }
        //int StepTime = 0;
        //if (ToDistance > 0) { 
        //    //est 1m = 1sec
        //    StepTime = calculateStep(ToDistance);
        //}
        TabMenu.Items.Clear();
        BusScheduler.Time aArrivalTime = new BusScheduler.Time();
        aArrivalTime.setTime(hour * 60 + minute);
        List<Trip> goodTrips = new List<Trip>();
        string mapInfo = "";
        string[] path = new string[10];
        foreach (Route r in goodRoutes)
        {
            List<BusScheduler.Time> startandEndTime = r.startandEndTime(startDest, endDest, aArrivalTime);
            BusScheduler.Time startTime= new BusScheduler.Time();
            BusScheduler.Time endTime = new BusScheduler.Time(); ;

            if (startandEndTime[1].total < startandEndTime[3].total)
            {
                startTime = startandEndTime[2];
                endTime = startandEndTime[3];
            }
            else
            {
                startTime = startandEndTime[0];
                endTime = startandEndTime[1];
            }
            if (startTime.total > 0 & endTime.total > (aArrivalTime.total - 60))
            {
                solutionFound = true;
                path[0] = r.getLocationIndex(startDest, endDest, startTime, endTime);
                mapInfo = r.name + "~" + startDest.name + "~" + clockTime(startTime) + "~" + endDest.name + "~" + clockTime(endTime) + "~" + path[0];
                addDirection(mapInfo);
            }
        }

        if (goodRoutes.Count == 0)
        {
            foreach (Route rs in startRoutes)
            {
                foreach (Route re in endRoutes)
                {
                    try
                    {
                        BusScheduler.Location changeDest = re.joinStartandEnd(rs, startDest, endDest);
                        List<BusScheduler.Time> startandEndTime = re.startandEndTime(changeDest, endDest, aArrivalTime);
                        BusScheduler.Time getOnTime = startandEndTime[0];
                        BusScheduler.Time arriveTime = startandEndTime[1];
                        startandEndTime = rs.startandEndTime(startDest, changeDest, getOnTime);
                        BusScheduler.Time startTime = startandEndTime[0];
                        BusScheduler.Time getOffTime = startandEndTime[1];
                        if ((startTime.total > 0) & (arriveTime.total - startTime.total < 180) & arriveTime.total > (aArrivalTime.total - 60))
                        {
                            solutionFound = true;
                            path[0] = rs.getLocationIndex(startDest, changeDest, startTime, getOffTime);
                            path[1] = re.getLocationIndex(changeDest, endDest, getOnTime, arriveTime);
                            bool checkPath = aTransportSystem.checkBusTransit(rs, re);
                            mapInfo = rs.name + "~" + startDest.name + "~" + clockTime(startTime) + "~" + endDest.name + "~" + clockTime(arriveTime) + "~" + re.name + "~" + changeDest.name + "~" + clockTime(getOffTime) + "~" + clockTime(getOnTime) + "~" + path[0] + "~" + checkPath + "~" + path[1];
                            addDirection(mapInfo);
                        }
                    }
                    catch
                    {
                        continue;
                    }
                }
            }
        }
        if (solutionFound == false)
        {
            lblResult.Text = "";
            //lblWalkWarning.Visible = false;
            lblNotification.Text = "The bus doesn't run this early.";
            drawMarker("setAB();");
        }
        else
        {
            lblResult.Text = "";
            string select = TabMenu.Items[0].Value;
            TabMenu.Items[0].Text = "<font color=RED>" + TabMenu.Items[0].Text + "</font>";
            string script = callDirection(select);
            drawMarker("ShowResult();DrawPath('" + script + "');");
        }
    }
    public void addDirection(string info)
    {
        MenuItem addList = new MenuItem();
        addList.Text = "schedule" + (TabMenu.Items.Count + 1);
        addList.Value = info;
        TabMenu.Items.Add(addList);
    }
    public void clearTabFormat()
    {
        int findFormat;
        for (int i = 0; i < TabMenu.Items.Count; i++)
        {
            findFormat = TabMenu.Items[i].Text.IndexOf("</font>");
            if (findFormat > 0)
            {
                TabMenu.Items[i].Text = TabMenu.Items[i].Text.Substring(0, TabMenu.Items[i].Text.Length - 7);
                findFormat = TabMenu.Items[i].Text.LastIndexOf(">");
                TabMenu.Items[i].Text = TabMenu.Items[i].Text.Substring(findFormat + 1);
            }
        }
    }
    protected void TabMenu_MenuItemClick(object sender, MenuEventArgs e)
    {
        lblResult.Text = "";
        clearTabFormat();
        TabMenu.SelectedItem.Text = "<font color=RED>" + TabMenu.SelectedItem.Text + "</font>";
        string script = callDirection(TabMenu.SelectedItem.Value);
        drawMarker("ShowResult();DrawPath('" + script + "');");
    }
    public string callDirection(String info)
    {
        string[] detail = info.Split('~');
        string txtStart = "", txtEnd = "", txtTransOff = "", txtTransOn = "";
        string script = "";
        /*detail
        0: r.name
        1: startDest.name
        2: clockTime(startTime)
        3: endDest.name
        4: clockTime(endTime)
        5: re.name || for length=6: path[0]
        6: changeDest.name 
        7: clockTime(getOffTime)
        8: clockTime(getOnTime)
        9: path[0]
        10: same bus
        11: path[1]
         */
        int index = 0;
        if (detail.Length == 6)
        {
            txtStart = "From: \"" + detail[1] + "\" Departure Time: " + detail[2] + " Route: " + detail[0];
            txtEnd = "To: \"" + detail[3] + "\" Arrival  Time: " + detail[4];
            txtStart = "<a id='result" + index + "' onmouseout='resultClearColor();' onmouseover='resultChangeColor(this,0)'>" + txtStart + "</a><br><br>";
            index++;
            txtEnd = "<a id='result" + index + "' onmouseout='resultClearColor();' onmouseover='resultChangeColor(this,1)'>" + txtEnd + "</a><br><br>";
            index++;
            lblResult.Text += "<br>" + txtStart + txtEnd;
            script = detail[5];
            //lstResult.Items.Add(txtStart);
            //lstResult.Items.Add(txtEnd);
            //draw map
            //txtStart = "From:  " + info[1] + "<br>Time: " + info[2] + "<br>Route: " + info[0];
            //txtEnd = "To: " + info[3] + "<br>Time: " + info[4] + "<br>Route: " + info[0];

            //script = "DrawMap('lstStart',0);DrawMap('lstDest',0);DrawDestination( \"" + txtStart + "\" , \"\" , \"" + txtEnd + "\" , \"\" ,\"" + info[5] + "\" ,\"\");";
        }
        else
        {
            if (detail[10] == "False")
            {
                txtStart = "From: \"" + detail[1] + "\" Departure Time: " + detail[2] + " Route: " + detail[0];
                txtTransOff = "Get Off at: \"" + detail[6] + "\" Arrival Time: " + detail[7];
                txtTransOn = "Get On from: \"" + detail[6] + "\" Departure Time: " + detail[8] + " Route: " + detail[5];
                txtEnd = "To: \"" + detail[3] + "\" Arrival Time: " + detail[4];
            }
            else
            {
                txtStart = "From: \"" + detail[1] + "\" Departure Time: " + detail[2] + " Route: " + detail[0];
                txtTransOff = "The Bus will stop at: \"" + detail[6] + "\" at time: " + detail[7];
                txtTransOn = "The Bus will continue with Route: \"" + detail[4] + "\" at time: " + detail[8];
                txtEnd = "To: \"" + detail[3] + "\" Arrival Time: " + detail[4];
            }
            txtStart = " <a id='result" + index + "' onmouseout='resultClearColor();' onmouseover='resultChangeColor(this,0)' >" + txtStart + "</a><br><br>";
            index++;
            txtTransOff = "<a id='result" + index + "' onmouseout='resultClearColor();' onmouseover='resultChangeColor(this,2)' >" + txtTransOff + "</a><br><br>";
            index++;
            txtTransOn = "<a id='result" + index + "' onmouseout='resultClearColor();' onmouseover='resultChangeColor(this,2)'>" + txtTransOn + "</a><br><br>";
            index++;
            txtEnd = "<a id='result" + index + "' onmouseout='resultClearColor();' onmouseover='resultChangeColor(this,1)'>" + txtEnd + "</a><br>";
            index++;
            lblResult.Text += "<br>" + txtStart + txtTransOff + txtTransOn + txtEnd;
            script = detail[9] + "~" + detail[11];
        }
        hdnNumResult.Value = Convert.ToString(index);
        return script;
    }
    public double distanceCalculator(double FromLat, double FromLng, double ToLat, double ToLng)
    {
        double radius = 6371;
        double lat = ToRad(ToLat - FromLat);
        double lng = ToRad(ToLng - FromLng);
        double a = Math.Pow(Math.Sin(lat / 2), 2) + Math.Cos(ToRad(FromLat)) * Math.Cos(ToRad(ToLat)) * Math.Pow(Math.Sin(lng / 2), 2);
        double b = 2 * Math.Atan2(Math.Sqrt(a), Math.Sqrt(1 - a));
        return radius * b;
    }
    public double ToRad(double degree)
    {
        return degree * Math.PI / 180;
    }
    public int calculateStep(double distance)
    {
        return Convert.ToInt16(distance * 1000) / 60 + 3;
    }
    public void checkMobile()
    {
        HttpContext context = HttpContext.Current;
        //http://www.codeproject.com/KB/aspnet/mobiledetect.aspx
        if (context.Request.ServerVariables["HTTP_USER_AGENT"] != null)
        {
            //Create a list of all mobile types
            string[] mobiles =
                new[]
                {
                    "midp", "j2me", "avant", "docomo", 
                    "novarra", "palmos", "palmsource", 
                    "240x320", "opwv", "chtml",
                    "pda", "windows ce", "mmp/", 
                    "blackberry", "mib/", "symbian", 
                    "wireless", "nokia", "hand", "mobi",
                    "phone", "cdm", "up.b", "audio", 
                    "SIE-", "SEC-", "samsung", "HTC", 
                    "mot-", "mitsu", "sagem", "sony"
                    , "alcatel", "lg", "eric", "vx", 
                    "NEC", "philips", "mmm", "xx", 
                    "panasonic", "sharp", "wap", "sch",
                    "rover", "pocket", "benq", "java", 
                    "pt", "pg", "vox", "amoi", 
                    "bird", "compal", "kg", "voda",
                    "sany", "kdd", "dbt", "sendo", 
                    "sgh", "gradi", "jb", "dddi", 
                    "moto", "iphone"
                };

            foreach (string s in mobiles)
            {
                if (context.Request.ServerVariables["HTTP_USER_AGENT"].ToLower().Contains(s.ToLower()))
                {
                    Response.Redirect("DefaultMobile.aspx");
                }
            }
        }
    }
}